Car.



F. G. BORG.

I GAR. APPLICATION FILED MAR. 11,1911.

1,000,891 Patented Aug. 15,1911.

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LUMUIA PLANOGRAPH 60.,WASnlNu-w. u c

F. G. BORG.

GAR.

APPLICATION FILED MAR. 11,1911.

1,000,891. I "Patented Aug. 15,1911.

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wlnn a li F. BORG. OAR.

APPLIOATIOH I'iLBD 11113.11, 1911.

Patented Aug. 15, 1911.

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- I lll I III fledsra'cz" 30 COLUMBIA PLANOURAPH (IO-,WASHINBTON D CFREDERICK e. BORG, or CHICAGO, ILLINOIS.

CAB.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Original application filed January 16, 1911, Serial No. 602,800. Dividedand this application filed March To all whom it may concern:

Be it known that I, FREDERICK G. BORG, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful In1- provement in Cars, of which the followingis a specification.

My invention relates to an improvement in the door-operating mechanismof cars in you-enter variety, is hereinafter described in thatparticular connection and is so illustrated in the accompanyingdrawings, 1n wh1ch Figure 1 is a broken plan section showing.

part of one car-platform equipped with my improvement and representlngthe doors 1n their opened position with the step lowered;

Fig. 2 is a similar view of the same showing the doors in their closedposition whereby the step is hidden from view; Fig. 3 is a broken planview showing the hinge-device in its position with the door-memberscontrolled by it in their folded relation; Fig. 4 is a plan sectiontaken just below the platform-floor, showing the preferred operatingmechanism for the hinged doors and step; Fig. 5 is an enlarged sectionon line 5, Fig. 4, showing the hinged step in its lowered position; Fig.6 is a similar view showing the step in its raised position; Fig. 7 is asection like that presented by Fig. 6 but taken, through a hinge-device,on line 7, Fig. 4, and Fig. 8 is a broken section on line 8, Fig. 4. r

The platform 8 of a pay as you enter street-car is usually arranged witha f0rward exit-way 9 and a rear entrance-way 10 for passengers, torequire them in entering the car to pass the conductor, with a door foreach way; and it is desirable to provide the platform with a hinged stepto be folded or raised when the doors are closed. The purpose is to havethe doors, under the control of the conductor, standing on the rearplatform, closed and the step raised while the car is in motion to thenprevent the exit and entrance of passengers, and to permit such SerialNo. 613,894.

exit and entrance only when the car comes to a stop.' To this end I haveapplied my improvement in a manner to cause the doors to besimultaneously opened by folding them inwardly and closed by unfoldingthem, and at the same'time to effect lowering and raising of the step;all from a single point.

A door 11, for the exit-way, is composed of two similar hingedly-foldingmembers 12 and 13, and a similar door 14, for the entrance-way, islikewise composed of the members 15 and 16. A description of theconstruction of the door 11 will suflice, therefore, for both:

Ata plurality of points the members 12 and 13 are connected atcorresponding edges by similar hinge-devices 17. The construction of thehinge-device is shown and described in detail in three different forms.

in my said pending application, and any one of said forms may beemployed with the present improvement. That illustrated in the presentconnection, which corresponds with the one referred to as representingthe preferred construction in said former application, comprises a metalhousing 18 (Fig. 3) of general U-shape, having a perforated extension 19on one end in the nature of a crank-arm, in which is pivoted one end ofa head '20 extending diagonally of an end of a tie-link 21. The housingis pivoted at 22 to a metal head 23, into which the edge of thedoor-member 13 is mortised, and which has a strap-extension 24 extendingtransversely of that member, to which it is screwed at a plurality ofpoints. The housing has also pivoted in it, at 25, a metal head 26, intowhich the edge of the doormember 12 is mortised; and this head,

which has a crank-like extension 26 is connected from the latter by alink 27 with the diagonal head 20.

A vertical rock-shaft 28 is secured in brackets 29 fastened at intervalsto the door-' tension 19 of its housing 18 through the medium of atie-link, to a stationary object (arm 32) eccentric to the axis 28.

By turning the shaft 28 in either direcwhile turning the companiondoor-member in the opposite direction. Thus with the members of the door11 in their folded position represented in Fig. 1, turning the shaft 28through a quarter-turn toward the right turns the member 13 to theclosed position in which it is represented in Fig.2, and in thusturning, the links 21 swing with it but being fastened at 32, wherebythey cannot elongate, the movement of the member 13 causes these linksto turn the housings of all the hinge-devices on their pivots '22 withthe effect of causing the links 27, by their connection with the heads20, to be pulled in the direction to cause them, by their connectionwith the heads 26, to turn the member 12 to the closing position. Thehinged edges of the door-members are thus caused to meet. Obviously, byturning the actuating rockshaft in the opposite direction, the housings18 are turned on their pivots 22 to restore the parts of thehinge-devices to their relative positions to fold thedoor-membersoutwardly into the position of the door 11 in Fig. 1.

A step 33 is hinged at three points, as indicated in Fig. 4, to a sillof the frame-work of the platform. a

For operating both doors 11 and 14 and the step 33 simultaneously themechanism is provided which is illustrated in Fig. 4, and described asfollows: To the lower end of each rock-shaft 28, on the projecting endof the pin 30 thereon, is fastened a crank 34 (Figs. 4 and 8). A link 35connected at one end with one crank 34 is connected at its opposite endto the other crank 34, adjacent to which it is provided with alaterally-extending arm 36 connected by a link 37 with one arm of athree-armed bell-crank 38, fulcrumed as shown in Fig. 4, the oppositearm of which is connected by a bent link 39 with a crank 40 on avertical shaft 41 jornaled in bearings in suitable position on thecar-platform for convenient access by the conductor to an operatinglever 42 on the shaft, The intermediate arm of the bell-crank 38 isconnected by a link 43 to the step behind its ling of hinging andcentrally between its en s.

With the parts in the relative positions of their full linerepresentation in Fig. 4, the doors are open and the step is down, asshown in Fig. 1, and by turning the lever 42 to bring the parts to thedotted positions, the doors are closed and the step is raised, as shownin Fig. 2. I

VVhatI claim as new and desire to secure by Letters Patent, is

1. In combination with a car-platform, a door formed of folding members,a shaft j ournaled on said plat-form and secured to a member ofthe door,hinge-devices on the door each comprising heads on the adjacentdoor-members connected together to turn in relatively-oppositedirections by turning one head, and correspondingly turn said members,links connecting the hinge-devices with stationary points on the caradjacent to said shaft, a crank on said shaft, a step hinged to theplatform, and lever-operated mechanism connected with said crank andstep for turning said shaft and raising and lowering the step.

2. In combination with a car-platform, a plurality of doors each formedof folding members, vertical shafts journaled in bearings on saidplatform and each secured to a member of a difierent door, hinge-deviceson the doors, each comprising heads on adjacent door-members connectedtogether toturn in relatively-opposite directions by turning one headand correspondingly turn sald member s, l-lIlkS connectlng thehingedevices with stationary points on the car adjacent to said shafts,cranks on the shafts,

a step hinged to the platform, and leveroperated mechanism connectedwith said cranks and step for turning the shafts and raising andlowering the step.

3. In combination with a car-platform, a-

plurality of doors each formed of folding members,vertical shaftsjournaled in bearings on said platforms and each secured to a member ofa different door, hingedevices on the doors, each comprislng heads onadthe platform comprising a link connecting,

said cranks and provided on one end with a laterally-extending arm, abell-crank fulcrumed on the frame-work of said platform, a linkconnectlng sald bell-crank and arm,

a link-connection between said bell-crank.

and step, an operatingshaft journaled on the platform and provided withan operat ing-lever and a crank, and a link connecting the crank of theoperating-shaft with said bell-crank.

FREDERICK BORG.

In the presence of L. HnIsLAR, R. SCI-IAEFER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

